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The best way to understand what a hook does is to look at where it occurs in the source code.
do_action( "hook_name" )apply_filters( "hook_name", "what_to_filter" ).Remember, this hook may occur in more than one file. Moreover, the hook's context may change from version to version.
| Line | Code |
|---|---|
| 220 | |
| 221 | if ( $update ) { |
| 222 | /** |
| 223 | * Fires after a link was updated in the database. |
| 224 | * |
| 225 | * @since 2.0.0 |
| 226 | * |
| 227 | * @param int $link_id ID of the link that was updated. |
| 228 | */ |
| 229 | do_action( 'edit_link', $link_id ); |
| 230 | } else { |
| 231 | /** |
| 232 | * Fires after a link was added to the database. |
| 233 | * |
| 234 | * @since 2.0.0 |
| 235 | * |
| 236 | * @param int $link_id ID of the link that was added. |
| 237 | */ |
| 238 | do_action( 'add_link', $link_id ); |